Pressure Vessel Code Material

Per ASME BPVC, Section VIII, Division 1, Para. UG-10 "Material Identified with or Produced to a Specification not Permitted by this Division, and Material not Fully Identified", you can use those material under certain conditions:

(a) Identified Material With Complete Certification From the Material Manufacturer.

Material identified with a specification not permitted by this Division, or procured to chemical composition requirements, and identified to a single production lot as required by a permitted specification may be accepted as satisfying the requirements of a specification permitted by this Division provided the conditions set forth in (1) or (2) below are satisfied.

(1) Recertification by an Organization Other Than the Vessel or Part Manufacturer

(a) All requirements, including but not limited to, melting method, melting practice, deoxidation, quality, and heat treatment, of the specification permitted by this Division, to which the material is to be recertified, have been demonstrated to have been met.

(b) A copy of the certification by the material manufacturer of the chemical analysis required by the permitted specification, with documentation showing the requirements to which the material was produced and purchased, and which demonstrates that there is no conflict with the requirements of the permitted specification, has been furnished to the vessel or part Manufacturer.

(c) A certification that the material was manufactured and tested in accordance with the requirements of the specification to which the material is recertified, excluding the specific marking requirements, has been furnished to the vessel or part Manufacturer, together with copies of all documents and test reports pertinent to the demonstration of conformance to the requirements of the permitted specification.

(d) The material and the Certificate of Compliance or the Material Test Report have been identified with the designation of the specification to which the material is recertified and with the notation "Certified per UG-10."

(2) Recertification by the Vessel or Part Manufacturer

(....... please complete reading of the full Para. UG-10).